As above, Netflix only has pause and not a stop button. Perhaps it isn't necessary this time around but I prefer to hit stop in the middle of a movie when I take a break. On the 360, if you hit pause and back out of Netflix, it doesn't save your spot. As a creature of habit, a stop button would be nice.
When searching on Youtube, you can't scroll from the end of the keyboard to the beginning and vise versa. In otherwords, you can't scroll right from Z and type an A. Instead, you need to scroll all the way to the left to type the A. Not a huge deal but it does make typing tedious and seems to just be an oversite.
The only music option is the paid program from Microsoft? Has there been any word on LastFM or I Heart Radio on the One?